
<script setup lang="ts">
import { ref } from 'vue'
import { getHotRecommendAPI } from '@/services/hot';
import type { SubTypeItem } from '@/types/hot';
import { onLoad } from '@dcloudio/uni-app';


// 热门推荐页 标题和url
const hotMap = [
  { type: '1', title: '特惠推荐', url: '/hot/preference' },
  { type: '2', title: '爆款推荐', url: '/hot/inVogue' },
  { type: '3', title: '一站买全', url: '/hot/oneStop' },
  { type: '4', title: '新鲜好物', url: '/hot/new' },
]

//获取参数
const query = defineProps<{
  type: string
}>()
const currHot = hotMap.find((v) => v.type === query.type)
uni.setNavigationBarTitle({title:currHot!.title})


const bannerPicture = ref('')
const subTypes = ref<(SubTypeItem & { finish?: boolean })[]>([])
const activeIndex = ref(0)

const getHotRecommendData = async() => {
  const res = await getHotRecommendAPI(currHot?.url, {
    // page: import.meta.env.DEV ? 30 : 1,
    page: 1,
    pageSize: 10,
  })
  bannerPicture.value = res.result.bannerPicture
  subTypes.value = res.result.subTypes
}

onLoad(() => {
  getHotRecommendData()
})

const onScrolltolower = async() => {
  const currsubTypes = subTypes.value[activeIndex.value]
  if (currsubTypes.goodsItems.page < currsubTypes.goodsItems.pages) {
    currsubTypes.goodsItems.page++
  } else {
    currsubTypes.finish = true
    return uni.showToast({icon:'none',title:'没有更多数据了！'})
  }
  const res = await getHotRecommendAPI(currHot?.url,{
    subType:currsubTypes.id,
    page:currsubTypes.goodsItems.page,
    pageSize:currsubTypes.goodsItems.pageSize
  })
  const newsubTypes = res.result.subTypes[activeIndex.value]
  currsubTypes.goodsItems.items.push(...newsubTypes.goodsItems.items)
}

</script>

<template>
  <view class="viewport">
    <!-- 封面图 -->
     <view class="cover">
      <image class="image"
        :src="bannerPicture"
      ></image>
     </view>
     <!-- 推荐选项 -->
      <view class="tabs">
        <text 
          class="text"
          v-for="(item, index) in subTypes"
          :key="item.id"
          :class="{ active:index === activeIndex }"
          @tap="activeIndex = index"
        >
          {{ item.title }}
        </text>
      </view>
      <!-- 列表 -->
       <scroll-view scroll-y class="scroll-view" v-for="(item, index) in subTypes" :key="item.index" v-show="activeIndex === index" @scrolltolower="onScrolltolower">
        <view class="goods">
          <navigator
            :url="`/pages/goods/goods?id=${goods.id}`"
            hover-class="none"
            class="navigator"
            v-for="goods in item.goodsItems.items"
            :key="goods.id"
          >
            <image class="thumb" :src="goods.picture"></image>
            <view class="name ellipsis">{{ goods.name }}</view>
            <view class="price">
              <text class="symbol">¥</text>
              <text class="number">{{ goods.price }}</text>
            </view>
          </navigator>
        </view>
        <view class="loading-text">{{ item.finish ? '没有更多数据了~' : '正在加载...' }}</view>
       </scroll-view>
  </view>
</template>


<style lang="scss">

page {
  height: 100%;
  background-color: #f4f4f4;
}

.viewport {
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  padding: 180rpx 0 0;
}

.cover {
  width: 750rpx;
  height: 225rpx;
  position: absolute;
  left: 0;
  top: 0;

  .image {
    width: 100%;
    height: 100%;
  }
}

.scroll-view {
  flex: 1;
  height: 0;
}

.tabs {
  display: flex;
  justify-content: space-evenly;
  height: 100rpx;
  line-height: 90rpx;
  margin: 0 20rpx;
  font-size: 28rpx;
  border-radius: 10rpx;
  color: #333;
  background-color: #fff;
  z-index: 9;
  position: relative;
  box-shadow: 0 4rpx 5rpx rgba(200, 200, 200, 0.3);
  .text {
    margin: 0 20rpx;
    position: relative;
  }
  .active {
    &::after {
      content: '';
      width: 40rpx;
      height: 4rpx;
      transform: translate(-50%);
      background-color: #27ba9b;
      position: absolute;
      left: 50%;
      bottom: 24rpx;
    }
  }
}

.goods {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 20rpx 20rpx;
  .navigator {
    width: 345rpx;
    padding: 20rpx;
    margin-top: 20rpx;
    border-radius: 10rpx;
    background-color: #fff;
    box-sizing: border-box;
  }
  .thumb {
    width: 305rpx;
    height: 305rpx;
  }
  .name {
    height: 88rpx;
    font-size: 26rpx;
  }
  .price {
    line-height: 1;
    color: #cf4444;
    font-size: 30rpx;
  }
  .symbol {
    font-size: 70%;
  }
  .decimal {
    font-size: 70%;
  }
}

.loading-text {
  text-align: center;
  font-size: 28rpx;
  color: #666;
  padding: 20rpx 0 50rpx;
}

</style>